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Diagram of the Social Judgment Task used in the fMRI session.
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posted on 2015-07-21, 03:00 authored by Esther Via, Carles Soriano-Mas, Isabel Sánchez, Laura Forcano, Ben J. Harrison, Christopher G. Davey, Jesús Pujol, Ignacio Martínez-Zalacaín, José M. Menchón, Fernando Fernández-Aranda, Narcís CardonerParticipants received social feedback based on the willingness to be met by other participants. Each facial stimulus (represented in by ovals instead of the originally presented faces) was presented for a total of 8 second-blocks, with an overlapping feedback symbol during the last 6 seconds. Acceptance, rejection or no-feedback (control condition) was indicated by a happy, sad, or neutral draw of a face. Originally presented images were contained in a preexisting face database: Martinez AM, Benavente R. The AR Face Database CVC Tech. Report #24 [Internet]. 1998. Available: http://www2.ece.ohio-state.edu/~aleix/ARdatabase.html.
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severity measuresdmpfcsensitivityreward sensitivityfMRI Study PatientsVentral striatum activationdorsomedial prefrontal cortexAnorexia nervosaacceptanceadaptive responsesmotivational drivepsychometric measuresbrain activityPersonality traitsEating Disorder Inventoryreward structuresseverity scoresrejectionediAbnormal Socialreward systemsneurobiological modelsresonance imaging
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